Sony · Sony A → Sony E adapter
Sony LA-EA4 — Sony A → Sony E adapter
Contains a full SLT (Single-Lens Translucent) mirror module and a dedicated AF sensor inside the adapter — gives any E-mount body, even those without on-sensor PDAF, 15-point phase-detect AF on every A-mount lens.
At a glance
- Vendor
- Sony
- Release year
- 2014
- Body-side contacts
- 9 pins
- Flags
- firmware-updatable —weather-sealed —requires glass —
What this adapter preserves
Compatibility for Sony A lens on a Sony E body (computed from the lensmount dataset — open the Sony A to Sony E adapter page for the full verdict, flange clearance, and adapter caveats).
- Focus: Full AF
- IS: IS / IBIS preserved
- Aperture: Electronic aperture
- Infinity focus: Reaches infinity
What it does
Includes an internal screw-drive motor, so legacy Minolta AF and Sony A-mount screw-drive lenses retain autofocus when the body itself cannot drive them.
SLT mirror costs ~⅓ stop of light; the AF coverage is the older 15-point pattern, not the full-sensor AF of modern Sony bodies. Superseded by LA-EA5 on bodies that have on-sensor PDAF (A7 III and later).
Common questions
- Does the LA-EA4 still make sense in 2026?
- Only if you're on an E-mount body without on-sensor PDAF (a6000 / a7 original / a7S / NEX), or you need predictable 15-point AF performance regardless of the body's native AF capabilities.
- How much light does the SLT mirror cost?
- About one-third of a stop — the translucent mirror splits light between the imaging sensor and the in-adapter AF sensor.
- Does the LA-EA4 drive screw-drive Minolta A-mount lenses?
- Yes — the LA-EA4 has its own internal AF screw-drive motor, so legacy screw-drive Minolta and Sony A-mount lenses retain autofocus even on E bodies that can't drive the screw themselves.
Head-to-head comparisons
Mounts on either side
Other adapters worth comparing
More from Sony
Same lens-side mount (Sony A)
- Sony LA-EA5 — onto Sony E · 2020
- Sony LA-EA3 — onto Sony E · 2013
Same body-side mount (Sony E)
- Sony LA-EA5 — from Sony A · 2020
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- Techart LM-EA9 — from Leica M · 2022
- Voigtländer VM-E Close Focus — from Leica M · 2015
- Sony LA-EA3 — from Sony A · 2013
- Fotodiox Pro EF-NEX — from Canon EF · 2018
- K&F Concept M42-NEX Pro — from M42 · 2018
- K&F Concept Nikon F-NEX Pro — from Nikon F · 2019
- K&F Concept Pentax K-NEX Pro — from Pentax K · 2019
- Urth M42 to Sony E — from M42 · 2019
- Urth Leica M to Sony E — from Leica M · 2020
- Kipon Baveyes EF-FE 0.7x — from Canon EF · 2017
- Novoflex SONY/OM — from Olympus OM · 2016
- 7Artisans M-FE — from Leica M · 2018
- Commlite CM-EF-NEX HS — from Canon EF · 2018
- Commlite CM-ENF-E1 Pro — from Nikon F · 2018
- Fotodiox Vizelex ND Throttle EF-NEX — from Canon EF · 2014
- K&F Concept C/Y-NEX — from Contax · 2018
- Urth Contax/Yashica to Sony E — from Contax · 2020
- K&F Concept MD-NEX — from Minolta SR · 2016
- K&F Concept PK-NEX — from Pentax K · 2016
- Fotodiox FD-NEX — from Canon FD · 2011
- Urth Olympus OM-E — from Olympus OM · 2020
Keep exploring
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